From: Uros Bizjak <ubizjak@gmail.com>
Date: Thu, 24 Jan 2008 17:08:10 +0000 (+0100)
Subject: re PR target/34856 (ICE with some constant vectors)
X-Git-Tag: releases/gcc-4.3.0~427
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=fcc448088df39d4512d3f1fd1d85ea2c83c36cf9;p=thirdparty%2Fgcc.git

re PR target/34856 (ICE with some constant vectors)

	PR target/34856
	* config/i386/i386.c (ix86_expand_vector_init): Consider only
	CONST_INT, CONST_DOUBLE and CONST_FIXED as constant vector elements.

testsuite/ChangeLog:

	PR target/34856
	* gcc.dg/pr34856.c: New test.

From-SVN: r131796
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index b4668e752ff7..6b4689aeb547 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2008-01-24  Uros Bizjak  <ubizjak@gmail.com>
+
+	PR target/34856
+	* config/i386/i386.c (ix86_expand_vector_init): Consider only
+	CONST_INT, CONST_DOUBLE and CONST_FIXED as constant vector elements.
+
 2008-01-24  Jakub Jakub Jelinek  <jakub@redhat.com>
 
 	PR middle-end/34934
diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c
index a8c8b722b8ea..6e9ae2a2ebd8 100644
--- a/gcc/config/i386/i386.c
+++ b/gcc/config/i386/i386.c
@@ -23593,7 +23593,9 @@ ix86_expand_vector_init (bool mmx_ok, rtx target, rtx vals)
   for (i = 0; i < n_elts; ++i)
     {
       x = XVECEXP (vals, 0, i);
-      if (!CONSTANT_P (x))
+      if (!(CONST_INT_P (x)
+	    || GET_CODE (x) == CONST_DOUBLE
+	    || GET_CODE (x) == CONST_FIXED))
 	n_var++, one_var = i;
       else if (x != CONST0_RTX (inner_mode))
 	all_const_zero = false;
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 933bcae743ed..96515abbcba5 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2008-01-24  Uros Bizjak  <ubizjak@gmail.com>
+
+	PR target/34856
+	* gcc.dg/pr34856.c: New test.
+
 2008-01-24  Tobias Burnus  <burnus@net-b.de>
 
 	* gfortran.dg/namelist_39.f90: Delete temporary files.
diff --git a/gcc/testsuite/gcc.dg/pr34856.c b/gcc/testsuite/gcc.dg/pr34856.c
new file mode 100644
index 000000000000..7900cc3472b7
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/pr34856.c
@@ -0,0 +1,25 @@
+/* { dg-do compile } */
+/* { dg-options "-O2" } */
+/* { dg-options "-O2 -msse2" { target { i?86-*-* x86_64-*-* } } } */
+
+#undef __vector
+#define __vector __attribute__((vector_size(16) ))
+
+typedef __vector signed char qword;
+typedef __vector unsigned int VU32;
+
+extern short g[192 + 16];
+
+void f (qword);
+
+void f1 (unsigned ctr)
+{
+  VU32 pin;
+  pin = (VU32){(unsigned int) &g[16]};
+  do
+    {
+      f ((qword) pin);
+      ctr--;
+    }
+  while (ctr);
+}